Multicast in not working with RTMFP

When using RTMFP multicast is working , iam able to see in router , but when viewing stream at remote end on satellite TCP packet are generating instead of UDP .

Scenario :

Using Encoder with RTMP ---then Media server with Fusion RTMFP--- then Router for multcasting ---Remote end Router---HUB Satellite ---Remote Satellite ---remote End computer on which using multicast player---